Rolls-Royce Helicon X3, User Manual

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Maintenance Instructions
Page 12 of 22 Doc. No.: 13S000411
Revision: A
Copyright © 2010 Rolls-Royce plc
3. Loosen the three screws (1) that hold the top cover of the CAN I/O module in place
and remove the top cover.
4. Remove the circuit board from the CAN I/O module by pulling it straight out from
the housing.
5. Check the identity of the CAN I/O module (6) to get the correct new card.
6. Set the address node wheels (4) and jumpers (5) on the new CAN I/O module
circuit board identical to the one being replaced.
7. Fit and connect the CAN I/O module in reverse order.
4.11 Replacing a Local Ethernet Switch
In the UN1 Electronic Control unit there is a local ethernet switch for communication
between the controllers and the Viewcon system.
To replace the controller, proceed as following:
1.
Disconnect the power by removing the corresponding fuse.
2. Remove the power supply connector (top).
3. Remove the Ethernet cables.
4. Remove the switch from the rail.
5. Fit and connect a new switch in reverse order.
Marine Controller Marine Controller
1